package com.heima.fangfa;

public class Student {
    public String learn(String id) {
        System.out.println("好好学习，天天向上");
        return "aaa";
    }

    public void eat() {
        System.out.println("天天吃肉，身体好");
    }

    private void drink() {
        System.out.println("多多喝水");
    }

    private void show() {
        System.out.println("努力，努力，真努力");
    }

}
